Space Compass, the joint venture between Japanese telecommunications giants Sky Perfect JSAT and NTT, has officially placed an order with Swiss aerospace manufacturer Swissto12 for the first satellite in its upcoming Geostationary Orbit (GEO) optical data relay constellation. This landmark agreement, announced in a joint statement on Monday, represents a significant step forward in the creation of a high-speed, laser-based communication infrastructure in space. The satellite will be built upon Swissto12’s proprietary HummingSat platform, a next-generation "small GEO" bus designed to provide high performance at a fraction of the size and cost of traditional geostationary satellites.
The partnership aims to address a critical bottleneck in the space industry: the delay in transmitting vast amounts of data from Low-Earth Orbit (LEO) satellites to ground stations. By utilizing a GEO-based optical relay, Space Compass intends to facilitate near-instantaneous data transfers, transforming Earth Observation (EO) from a historical record-keeping exercise into a dynamic, real-time decision-making tool for governments, researchers, and commercial enterprises.
The Genesis of Space Compass and the Integrated Space Computing Network
The foundation for this project was laid in April 2022, when Sky Perfect JSAT, Asia’s largest satellite operator, and NTT, one of the world’s leading telecommunications providers, announced the formation of Space Compass. The joint venture was established with the ambitious goal of constructing an "Integrated Space Computing Network." This vision involves the integration of space-based sensing, communication, and computing to create a seamless data infrastructure that mirrors the functionality of terrestrial cloud computing but operates within the orbital environment.
Central to this vision is the concept of a "Space Data Center." As the number of satellites in LEO continues to grow exponentially—driven by the rise of "New Space" constellations for imaging, weather monitoring, and maritime tracking—the volume of data generated is overwhelming existing radio frequency (RF) downlink capacities. Space Compass aims to solve this by deploying a constellation of GEO relay satellites that can "backhaul" data from LEO assets using optical (laser) links, which offer significantly higher bandwidth and lower latency than traditional RF systems.
Technical Innovation: The HummingSat Platform
The selection of Swissto12 as the manufacturer for this inaugural satellite highlights the growing industry shift toward more agile and cost-effective satellite platforms. Swissto12, headquartered in Renens, Switzerland, has gained international recognition for its use of advanced additive manufacturing (3D printing) to produce high-performance Radio Frequency (RF) components and systems.
The HummingSat platform is the result of a partnership between Swissto12 and the European Space Agency (ESA) under a Partnership Project aimed at developing a small, modular GEO satellite bus. Unlike conventional geostationary satellites, which often weigh several tons and are roughly the size of a large bus, the HummingSat is significantly more compact. This smaller form factor allows for more affordable launch costs and enables operators to deploy capacity more incrementally to meet evolving market demands.
For the Space Compass mission, Swissto12 will integrate optical communication terminals (OCTs) into the HummingSat bus. While the company confirmed that the specific optical terminals will be procured from an external specialist supplier, the assembly, integration, and testing (AIT) of the entire payload and bus will be managed in-house by Swissto12. This integration of optical capabilities marks a new milestone for the HummingSat series, proving its versatility beyond traditional RF telecommunications.
Transforming Earth Observation into Real-Time Intelligence
The primary driver for this new constellation is the modernization of Earth Observation. Currently, most LEO imaging satellites can only transmit data when they pass directly over a ground station. This creates "revisit" delays and data delivery gaps that can range from several minutes to several hours. For time-sensitive applications—such as monitoring natural disasters, tracking illegal maritime activity, or responding to military developments—these delays can render the data obsolete.
"By leveraging high-speed, high-capacity optical data-relay architecture, we aim to enable faster and smarter decision-making through real-time Earth Observation insights," said Hiromi Komatsu, Co-CEO of Space Compass, in the joint statement. "This first satellite will play a pivotal role in establishing a new space communications infrastructure."
The relay satellite will act as a permanent bridge in geostationary orbit. Because a GEO satellite remains fixed relative to a point on Earth and has a vast field of view, it can maintain a continuous link with LEO satellites as they orbit beneath it. The LEO satellite sends its data up to the GEO relay via laser, and the GEO relay then beams that data down to a dedicated ground station, providing a near-continuous data pipe.
Chronology and Strategic Roadmap
The development and deployment of this optical relay satellite follow a clear strategic timeline:
- April 2022: NTT and Sky Perfect JSAT form Space Compass to build the Integrated Space Computing Network.
- March 2025: Swissto12 secures its first major Asia-Pacific contract for a HummingSat with Astrum Mobile for a satellite-to-device (S2D) platform.
- Monday (Release Date): Space Compass officially orders the first GEO optical relay satellite from Swissto12.
- 2025–2027: Manufacturing, payload integration, and rigorous testing phases at Swissto12’s facilities.
- Japanese Fiscal Year 2028 (ending March 2029): Target launch window for the first satellite.
- Post-Launch 2029: Immediate commencement of commercial operations and data relay services.
A spokesperson for the companies noted that this satellite is intended to be the first of several, suggesting that Space Compass plans to build out a full constellation to provide global or near-global optical relay coverage.
The Shift Toward Optical Communications
The move toward optical communications is a defining trend in the 2020s space economy. Laser communication offers several advantages over traditional radio waves:
- Bandwidth: Optical links can carry significantly more data per second, essential for high-resolution 4K video and hyperspectral imaging.
- Security: Laser beams are highly directional and narrow, making them extremely difficult to intercept or jam compared to the broad "footprint" of RF signals.
- Spectrum Regulation: Unlike RF bands, which are heavily regulated and increasingly congested, the optical spectrum does not currently require the same level of international frequency coordination, allowing for faster deployment.
By adopting this technology, Space Compass and Swissto12 are positioning themselves at the forefront of the "Space 2.0" infrastructure, where the focus is shifting from simply placing hardware in orbit to creating a sophisticated, interconnected network.
Market Context and Regional Impact
This agreement is a significant win for Swissto12, marking its second major success in the Asia-Pacific (APAC) region within a short timeframe. In March 2025, Astrum Mobile selected Swissto12 to manufacture the NEASTAR-1, the region’s first dedicated satellite-to-device platform. The repeat success in the Japanese market underscores the growing trust in European "Small GEO" technology as a viable alternative to larger, more expensive American or domestic platforms.
Emile de Rijk, CEO of Swissto12, emphasized the broader implications of the partnership: "We are delighted about this partnership with Space Compass and our shared vision to build multi-orbit, secure space infrastructure that supports some of the world’s most important space missions. HummingSat once again proves its versatility and its outsize impact in enabling purposeful innovation in space."
For Japan, this project is a matter of national strategic importance. As the country seeks to bolster its space autonomy and enhance its disaster response capabilities, having a sovereign, high-speed data relay network is vital. The collaboration between a legacy satellite operator (JSAT) and a telecommunications titan (NTT) ensures that the project has both the orbital expertise and the terrestrial network integration necessary for success.
Analysis of Implications for the Global Space Industry
The order of this optical relay satellite serves as a bellwether for several industry-wide shifts. First, it validates the "Small GEO" market. For decades, the geostationary arc was reserved for massive, expensive satellites. Swissto12’s HummingSat, along with competitors in the small-satellite space, is proving that GEO is no longer the exclusive domain of billion-dollar programs.
Second, the "Space Data Center" model could fundamentally change how LEO constellations are designed. If LEO operators know they can rely on a third-party GEO relay for high-speed data backhaul, they can reduce the complexity and weight of their own communication payloads, potentially lowering the cost of LEO imaging constellations.
Finally, the focus on "real-time insights" reflects a broader trend in the digital economy. In an era of high-frequency trading, instant global news, and rapid military response, the delay inherent in traditional satellite downlinks is increasingly unacceptable. The Space Compass-Swissto12 partnership is a direct response to the demand for "live" data from space.
While the specific financial details of the contract remain undisclosed, the long-term value of the partnership lies in its potential to set the standard for the next generation of space-based data infrastructure. As the Japanese fiscal year 2028 approaches, the industry will be watching closely to see if this "HummingSat" can indeed deliver the high-speed, laser-linked future that Space Compass has envisioned.